Security readout for executives and security teams
Plain-English summary
This flaw affects Insteon Hub devices and can let an authenticated attacker crash or potentially take control of device behavior through malformed cloud-delivered commands. Business risk is high where these hubs control physical automation, security, or operational systems. The source bundle does not show active exploitation.
Executive priority
Treat this as high priority where Insteon Hubs influence physical access, alarms, lighting, or operational automation. The strongest immediate action is inventory, firmware verification, and exposure reduction while confirming vendor remediation status.
Technical view
In Insteon Hub firmware 1012, the PubNub "cc" channel message handler contains a stack-based buffer overflow. In cmd sn_sx, the cmd4 value is copied with strcpy into a 32-byte stack buffer, allowing oversized input to overwrite adjacent stack data.
Likely exposure
Known exposure is Insteon Hub running firmware version 1012. The provided affected-product metadata does not define all vulnerable versions, so asset owners should verify firmware and vendor status before assuming non-exposure.
Exploitation context
The CVSS vector is network-based with high attack complexity, low privileges, no user interaction, and changed scope. The description requires an authenticated HTTP request. The bundle marks KEV as false and provides no cited evidence of active exploitation.
Researcher notes
The public detail identifies CWE-121 and a specific unsafe strcpy copy into a 32-byte stack buffer. Evidence is sufficient for vulnerability classification, but incomplete for version range, patch availability, real-world exploitation, and post-overflow control reliability.
Mitigation direction
- Identify Insteon Hub devices and record firmware versions.
- Check Insteon or vendor guidance for fixed firmware or replacement advice.
- Restrict Hub control access to trusted users and networks.
- Rotate credentials if unauthorized authenticated access is possible.
- Isolate or retire affected hubs if no supported fix exists.
Validation and detection
- Confirm whether any deployed Hub runs firmware version 1012.
- Review cloud, PubNub, and HTTP access paths for unauthorized users.
- Check device logs for unexpected authenticated control activity.
- Verify compensating network controls limit access to Hub management paths.
- Document any vendor firmware or retirement decision.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-121: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2017-16258 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.5 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H1.86Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
8.5HighVector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://talosintelligence.com/vulnerability_reports/TALOS-2017-0483CVE reference
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Stack-based Buffer Overflow
Stack-based Buffer Overflow represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.